Evidence map›Paper›PMID 30391191›Full record

ArticleThe Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation2019

Survival in pulmonary hypertension due to chronic lung disease: Influence of low diffusion capacity of the lungs for carbon monoxide.

Lauren Rose, Kurt W Prins, Stephen L Archer, Marc Pritzker, E Kenneth Weir, Jeffrey R Misialek, Thenappan Thenappan

Abstract read
In one paragraph

Article in The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  10. Pulmonary hypertension associated with nonparenchymal restrictive lung diseases.European respiratory review : an official journal of the European Respiratory Society · 2026
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  18. Pulmonary hypertension associated with lung diseases.The European respiratory journal · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Lauren RoseCardiovascular Division, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
Kurt W PrinsCardiovascular Division, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
Stephen L ArcherDepartment of Medicine, Queen's University, Kingston, Ontario, Canada.
Marc PritzkerCardiovascular Division, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
E Kenneth WeirCardiovascular Division, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
Jeffrey R MisialekCardiovascular Division, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
Thenappan ThenappanCardiovascular Division, University of Minnesota Medical School, Minneapolis, Minnesota, USA. Electronic address: tthenapp@umn.edu.

Funding

The Role of DRP-1 and Mitochondrial Fission in Pulmonary Arterial HypertensionR01HL113003 · NHLBI · QUEEN'S UNIVERSITY AT KINGSTON · PI ARCHER, STEPHEN L · 2013 to 2016
$1.1M
Mechanisms of Junctophilin-2 Misregulation that contribute to right ventricular dysfunction in pulmonary arterial hypertensionK08HL140100 · NHLBI · UNIVERSITY OF MINNESOTA · PI PRINS, KURT W · 2018 to 2022
$785k
Investigating microtubules in Duchenne cardiomyopathyF32HL129554 · NHLBI · UNIVERSITY OF MINNESOTA · PI PRINS, KURT W · 2015 to 2016
$81k
NHLBI NIH HHS F32 HL129554NHLBI NIH HHS K08 HL140100NHLBI NIH HHS R01 HL113003
6 · The paper itself

Abstract

backgroundPatients with pulmonary hypertension (PH) due to chronic lung disease (Group 3 PH) have poor long-term outcomes. However, predictors of survival in Group 3 PH are not well described.

methodsWe performed a cohort study of Group 3 PH patients (n = 143; mean age 65 ± 12 years, 52% female) evaluated at the University of Minnesota. The Kaplan-Meier method and Cox regression analysis were used to assess survival and predictors of mortality, respectively. The clinical characteristics and survival were compared in patients categorized by PH severity based on the World Health Organization (WHO) classification and lung disease etiology.

resultsAfter a median follow-up of 1.4 years, there were 69 (48%) deaths. The 1-, 3-, and 5-year survival rates were 79%, 48%, and 31%. Age, coronary artery disease, atrial fibrillation, Charlson comorbidity index, serum N-terminal pro‒brain natriuretic peptide (NT-proBNP), creatinine, diffusion capacity of carbon monoxide (DLCO), total lung capacity, left ventricular ejection fraction, right atrial and right ventricular enlargement on echocardiography, cardiac index, and pulmonary vascular resistance (PVR) were univariate predictors of survival. On multivariable analysis, DLCO was the only predictor of mortality (adjusted hazard ratio [HR] for every 10% decrease in predicted value: 1.31 [95% confidence interval 1.12 to 1.47]; p = 0.003). The 1-/5-year survival by tertiles of DLCO was 84%/56%, 82%/44%, and 63%/14% (p = 0.01), respectively. On receiver-operating characteristic curve analysis, DLCO <32% of predicted had the highest sensitivity and specificity for predicting survival. The 1- and 5-year survival in patients with a DLCO ≥32% predicted was 84% and 60% vs 68% and 13% in patients with a DLCO <32% predicted (adjusted HR: 2.5 [95% confidence interval 1.3 to 5.0]; p = 0.007). Lung volumes and DLCO were not related, but higher PVR was strongly associated with reduced DLCO. There was increased mortality in interstitial lung disease‒PH as compared with chronic obstructive pulmonary disease‒PH, but PH severity based on the WHO classification did not alter survival.

conclusionsLow DLCO is a predictor of mortality and should be used to risk-stratify Group 3 PH patients.

Indexed as

RegistriesAgedCarbon MonoxideChronic DiseaseFemaleFollow-Up StudiesForced Expiratory VolumeHumansHypertension, PulmonaryLungLung Diseases, InterstitialMaleMiddle AgedMinnesotaPrognosisProspective StudiesCarbon MonoxideCOPDCor pulmonaleEmphysemaInterstitial lung diseasepulmonary function testright ventricle

Identifiers

PMID30391191
PMCPMC6556403

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.